b) The area of the base of a rectangular pyramid is 85 cm”. If the area of eachtriangular face along the length and breadth is 28,5 cm and 23:2 en respectively,find the total surface area of the pyramid, About the author Audrey
Step-by-step explanation: Area of base rectanglar pyramid =85sq.cm Area of triangular face = 1/2 x breadth x length =1/2 x 28 x 5 =70sq. cm there are four triangle so area of four triangle =4 x 70 280sq. cm total surface area = (280 + 85) sq.cm = 365sq .cm Reply
Step-by-step explanation:
Area of base rectanglar pyramid =85sq.cm
Area of triangular face = 1/2 x breadth x length
=1/2 x 28 x 5
=70sq. cm
there are four triangle
so area of four triangle =4 x 70
280sq. cm
total surface area = (280 + 85) sq.cm
= 365sq .cm